And how long will it be before someone sues apple because they missed an important phone call that was a life and death situation because their phone went into sleep mode? This is a bad bad idea, if you pay for a phone and you pay for the telecom tariff then surely not being able to use this device as and when the user sees fit to do so must mean that certain laws are being broken here. The human rights law is surely one just for starters.

theres a thing on your phone, if you look closely, it says something along the lines of silent mode. with options to vibrate if you get any sms or phone calls. check it. tell people who annoy you in the cinema to check for it. if they select this option, the phone will not self destruct.

as for people talking in the cinema, thats not coz of the phone. thats a personality flaw on their part. clearly they are inconsiderate pricks. you should stand up and tell them that. i do. it works.